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Duplicate of Probability
Duplicate of Probability
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Probability questions for statistics class. #probability
Flashcards
34 cards
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Questions
34
Answers
1
What is the probability of the empty set, P(∅)?
1/2
0
3/4
1
2
What is experimental probability?
The probability based on what should happen.
The probability based on what has happened?
3
What is the symbol for the empty set?
∅
Ω
∩
⊂
4
What is the probability of rolling a number
greater than 4
?
1
1/2
0
1/3
5
The area shaded in green is which of these?
A ∪ B
The complement of A
None of these.
A ∩ B
6
What is theoretical probability?
The probability that should happen.
The probability based on what has happened.
7
The area shaded in green is which of the following?
None of these.
The complement of A
A ∪ B
A ∩ B
8
What is the probability of the set that contains all possible outcomes, P(Ω)?
0
3/4
1/2
1
9
If I toss a fair coin twice and get TT, what is the probability that tails appears next toss?
1/2
1
2/3
0
10
If an event is
certain to occur
, it has a probability of zero.
False
True
11
An event with a probability of 0.1 ...
cannot occur.
is very likely to occur.
is certain to occur.
is not very likely to occur.
12
On a single roll of a standard die, what is the probability that an odd number will appear?
1
3/6
1/6
0
13
What is the theoretical probability that you draw a
red
card from a shuffled deck of cards?
0
1/13
1/4
1/2
14
What is sample space, S?
The total possible outcomes of an event.
The favorable outcomes of an event.
The area where samples are.
15
You roll a fair six-sided die once. What is the probability of getting an
even number
?
1/2
1/6
0
1/3
16
Two events are independent if the occurrence of one doesn't affect the probability of the other
False
True
17
Which of the following experiments does
NOT have equally likely outcomes
?
Toss a coin.
Choose a letter at random from the word SCHOOL.
Choose a number at random from 1 to 7.
18
What is the probability that you draw a
diamond
from a well-shuffled deck of cards?
1/13
1/2
0
1/4
19
Given a bag with 12 red and 7 green marbles, what is the odds of randomly selecting a
red
one?
12/19
1/2
7/12
7/19
20
If the probability of an event happening is ¼, then the probability of it not happening is ¾.
True
False
21
What are dependent events?
Events where the probabilities ARE related.
Events where the probabilities ARE NOT related.
22
What is the probability that you draw the
ace of diamonds
from the deck?
1/13
0
1/4
1/52
23
What is the odds of rolling a 7 when you roll one standard die one time?
0
3/6
5/6
1/6
24
If an event is
impossible
, it has a probability of zero.
True
False
25
Two dice are rolled. What is the probability that the sum is 12?
1/12
0
1/36
1/6
26
A women has three sons. What is the probability that her next child will be a girl?
1/8
1/4
0
1/2
27
What is the probability of randomly choosing a vowel (a,e,i,o,u) from the English alphabet?
None of these.
1/21
5/26
21/26
28
What are independent events?
Events where the probabilities ARE related.
Events where the probabilities ARE NOT related.
29
On a single roll of a standard die, what is the probability that a 3 will NOT appear?
5/6
1/6
3/6
0
30
The area shaded in green is which of the following?
The complement of A
A ∪ B
None of these.
A ∩ B
31
What is the probability that a number less than 7 will appear when you roll a die one time?
1/2
1/6
1
0
32
If I toss a fair coin, what is the probability that tails appears?
0
1/2
1
None of the these
33
Two coins are tossed. What is the probability of getting two heads, P(HH)?
0
1/4
1
1/2
34
What is the probability that you draw an
ace
from a well-shuffled deck?
1/4
0
1/2
1/13
